Lightroom has encountered problems reading this photo. You will not be able to make adjustments

[Justin5DEA]

Been editing wedding photos for 2 weeks with no problem...Now my lightroom v10.3 on windows 10 pro is showing an error saying Lightroom has encountered problems reading this photo. You will not be able to make adjustments to the photo. cant export and the software is lagging pretty hard. I can open up  the files just fine on windows but i dont know whats wrong with lightroom.

[Rob_Cullen]

FYI- The Badge that indicates that a file is damaged or corrupted-

A black circle with an exclamation mark.

[GoldingD]

Have you tried reseting the preference file?

[Kastle5D67]

How do you reset the preference file?

[JP Hess]

Just a couple of questions. How old are the cards? And, how do you reformat the cards in preparation of a new shoot?

[Kastle5D67]

My SD cards are up to 3-4 years old. It depends. I usually will erase the files on my camera before doing a new shoot directly on my canon camera. However, I just recently started formating the cards every time the cards go back in my camera and I know that's typically better. But I believe the files having issues were not fully formatted before being written on.